Almost alone among contemporary conductors, he avoids the path of demonism; he takes music in his stride and does not press it with febrile intensity.

While undelving the conditions of the possibility of knowledge, rooted in the subjective cognitive apparatus (this critique is called 'transcendental'), he makes clear reason is not equipped to probe behind the surface of the mirror and face the transcendent, the Hintenwelt out of reach.

Caches can be hidden in a disguised container, or very small package, and one element of difficulty is hiding caches in urban locations, where the hunter will have to avoid being spotted by ‘muggles’ – the name given to those unaware of the sport. Muggles will be surprised at the scale of the secret game taking place under their noses.

That means everything from lighting to the vibes, the karma of the room.